//logo图标
@mixin  logo($header-height,$--color-primary) {
  .logo{
    height: $header-height;
    width: 100%;
    background-color: $--color-primary;
    color: white;
    width: 100%;
    text-align: center;
    font-weight: bolder;
  }

}

.logo-span{
  transition-delay: 0.2s;
  font-size: 45px;
  line-height: 60px;
}
.logo-span-pack-up{
  font-size: 15px;
  line-height: 60px;
}